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[" (C) "Q],[" Figure shows a system of t...

[" (C) "Q],[" Figure shows a system of three concentric metal shells "A,B" and "C" with radii "a,2" and "3" a respectively."],[" Shell "B" is earthed and shell "C" is given a charge "Q." Now if shell "C" is connected to shell "A" ,then the "],[" final charge on the shell "B," is equal to : "],[[" (A) "-(4Q)/(13)," (B) "-(8Q)/(11)],[" (A) "-(4Q)/(13)," 3Q "]]

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